<template>
  <div class="todo-header">
    <input v-model="key" @keyup.enter="getTodo" type="text" placeholder="请输入你的任务名称，按回车键确认" />
  </div>
</template>

<script>
export default {
  name: "TodoHeader",
  data(){
    return {
      key:""
    }
  },
  props:["Todos","addTodo"],
  methods:{
    getTodo(){ 
        if(this.Todos.some(item=>item.content===this.key.trim())){
          alert("输入重复")
          this.key=""
          return 
        }
      this.$emit("addTodo",this.key)
      this.key=""
    }
  }
};
</script>

<style  scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
}
</style>